Fixing and buying guide

Who this product is for

This recessed flashing is intended for builders, roofers, and serious DIY installers working on timber-framed buildings where a VELUX rooflight is being fitted. It is the correct choice if your building has traditional timber frame construction and you are installing a rooflight within the specified size range in a dry internal environment.

Compatibility and sizing

This flashing is compatible with VELUX rooflights up to 94cm wide and 140cm long. Before ordering, measure your rooflight opening carefully to confirm it falls within these maximum dimensions. The flashing is designed specifically for timber-framed buildings; do not use this product with steel or concrete frame construction, as the fixing system is engineered for timber.

• Maximum rooflight width: 94cm
• Maximum rooflight length: 140cm
• Material compatibility: Timber-framed buildings only
• Application: Dry conditions only

What is included and material specification

The EDN PK08 0000 is supplied as a complete recessed flashing unit constructed from timber-grade treated wood with a natural finish. The treated timber provides durability and resistance to decay in timber-frame applications. The flashing incorporates a secure fixing system designed to create a tight seal around the rooflight opening.

• Material: Timber-grade treated wood
• Finish: Natural
• Dimensions: 94cm wide × 140cm long
• Includes secure fixing system

Pre-installation checks and application

Before installation, verify that your rooflight dimensions do not exceed 94cm × 140cm and confirm your building is timber-framed construction. This flashing is designed for dry conditions only; do not install in areas subject to water ingress, persistent dampness, or exposed wet environments. Ensure the rooflight opening is properly prepared and the timber frame is sound and dry before fitting. The secure fixing system must be installed according to VELUX guidance to achieve a proper weathertight seal.

• Confirm rooflight size is within 94×140cm maximum
• Verify timber-frame construction
• Check building location is dry conditions only
• Inspect timber frame for soundness before installation
• Follow VELUX fixing instructions for weathertight seal